All patients were divided into high expression and low expression groups depending on whether their Circ-SMARCA5 relative expression was greater than the median value in MM patients or not, which showed that Circ-SMARCA5 high expression was correlated with lower β2-MG level (P = 0.001) as well as less advanced ISS stage (P < 0.001) (Table 2). Here, SMARCA5 is linked to Miyoshi myopathy.